Day-One Patch

A software update released on a game's launch day to repair issues that could not be addressed in time for the game's distribution. Wikipedia's glossary of video game terms notes that release day is often accompanied by one. A well-known example is Halo: The Master Chief Collection: a 15-gigabyte patch went live on 6 November 2014 for players who had digitally preordered, and at launch many players still had problems with online matchmaking, which led to a public apology from 343 Industries. A patch is not a guarantee of a working launch: Cyberpunk 2077 was widely criticised for bugs and glitches, particularly on PlayStation 4 and Xbox One, during its launch period. The same glossary entry covers the related term 'day-one DLC', content offered for a price on release day, which is often associated with content already on the disc. For digital-only games, a day-one patch works like any early update: the build you download already includes it.